Cor funnelform or salverform, with or without fornices; anthers included or partly exserted; gynobase low-pyramidal or flat or depressed; nutlets smooth to pitted or wrinkled, basally attached, the large scar often surrounded by a sharp rim, sometimes only one nutlet maturing; annual to more often perennial herbs, seldom pungently hairy, with mostly yellow or white or greenish-white fls in modified leafy-bracteate cymes, or solitary in or near the upper axils, often heterostylic; fruiting pedicels mostly erect or ascending. (Buglossoides) 75, widespread, mostly temperate and mountainous regions.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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